Car-brake.



PATENTED JULY 12, 1904.

S. T. NOBLE.

GAR BRAKE.

0 APPLICATION FILED MAY 11, 1904.-

NO MODEL.

auwwfol f i cdaa UNITED STATES Patented July 12, 1904.

SAMUEL T. NOBLE, OF NEW CONCORD, OHIO.

CAR-BRAKE.

SPECIFICATION forming part of Letters Patent No. 765,096, dated July 12,1904. Application filed May 11, 1904. Serial No. 207,428. (No model.)

To aZZ w/wm it may concern.-

Be it known that I, SAMUEL T. NOBLE, a citizen of the United States,residing at New Concord, in the county of Muskingum and State of Ohio,have invented new and useful Improvements in Oar-Brakes, of which thefollowing is a specification.

My invention pertains to car-brakes, more particularly that class ofcar-brakes in which the brake-shoe is arranged to engage a rail of thecar-track in lieu ofone of the car-wheels with a view of eliminating theliability of the wheel being flattened; and it has for its object toprovide abrake of the type stated which is a material simplification ofthose extant and one so constructed that the car-driver is enabled toexert great leverage on the brakeshoe and powerfully apply the same to arail.

With the foregoingin mind the invention will be fully understood fromthe following description and claims when taken in connection with theaccompanying drawings, forming'part of this specification, in'whichFigure 1 is a vertical transverse section illustrating the arrangementof my improvements relative to a car-truck and a rail of a car-track.Fig. 2 is a side elevation of the same. Fig. 3 is a detail section takenin the plane indicated by the line 3 3 of Fig. 1.

Similar letters designate corresponding parts in all of the views of thedrawings, referring to which- A is a part, preferably a bolster, of acartruck.

B is a rail of the track on which the car is designed to travel, and Ois my novel brake as a whole. The said brake is made up of a bar orcasting a, fixed on the bolster or any other suitable part of thecar-truck and having lower and upper vertically-disposed guides Z) c andalso having a space (Z intermediate of or between the said guides, ashoe 0, of any material suitable to the purposes of my invention,normally resting above and arranged to frictionally engage the tread ofthe rail B, a vertical stem f, fixed to the shoe e or formed integraltherewith and having a wide lower portion 9 movable in a bifurcation iiin the lower guide Z and also having a reduced upper portion movable inthe guides Z and 0 and a transverse slot 2' at a point intermediate ofthe said guides 5 and c, a transversely-disposed vertically-movablelever j, fulcrumed on the bolster or other suitable part of the truckand having a comparatively short outer arm 10, the end of which islocated in the slot Z of the stem f, and a vertically-disposed coiledspring Z, arranged at the inner side of and parallel to theguide-casting a and connected at its upper end to said casting and atits lower end to the short arm is of the lever 7, whereby it is adaptedto return the brake-shoe e, the stem f, and the lever to and normallyhold the same in the positions shown in Fig. l. The comparatively widelower portion g of the stem f, working in the bifurcation it of thelower guide Z,,is adapted to hold the shoe 0 and the stem f againstturning laterally, and hence the upper portion of the stemf may beeither circular or angular in cross-section, as preferred.

- Any suitable means may be employed for transmitting motion from abrake-staff or other operating device (not shown) to the lever 'of myimprovements. When, however, the lever 7' is to be operated through themedium of a rotary staff with which cars are generally equipped, Iprefer to effect the connection with a cable a, which is connected atone end to the lever j and is designed to be passed over a sheave on thecar-sill and connected at its opposite end to and wound upon the staff.

In the practical use of my novel brake it will be observed that when thelever 7' is released the spring Z serves to hold the shoe a, stem f, andlever j in the positions shown in Fig. 1, and hence the shoe in no wayinterferes with the progress of the car. WVhen, however, thecomparatively long inner arm of the lever j is raised, the stern f andthe shoe 0 are depressed against the action of the spring Z and the shoeis powerfully applied to the tread of the rail B. From this it followsthat the shoe applied with the powerful leverage which the driver orInotorman is enabled to exert is calculated to quickly stop a car, andthis without involving flattening of any one of the wheels of the car orinjury of any kind to the track-rail. Subsequent to the stopping of thecar the lever 7' is released, when the spring Z will return the parts tothe positions shown in Fig. 1. With this done the car may obviouslyproceed at the will of the driver or motorman.

It will be appreciated from the foregoing that notwithstanding theefiiciency of my novel brake the same is simple and inexpensive inconstruction and at the same time strong and durable, and therefore welladapted to withstand the rough usage to which car-brakes are ordinarilysubjected in practice.

I have entered into a detailed description of the construction andrelative arrangement of the parts embraced in the present and preferredembodiment of my invention in order to impart a full, clear, and exactunderstand ing of the said embodiment. I do not desire, however, to beunderstood as confining myself to such specific construction andrelative arrangement of parts, as such changes or modifications may bemade in practice as fairly fall within the scope of my invention asclaimed.

Having described my invention, what I claim, and desire to secure byLetters Patent,

1. In a rail-brake for cars, the combination of a car-truck, a devicefixed on the car-truck and having lower and upper vertically-disposedguides, and also having a space between said guides, a shoe arranged toengage the tread of a track-rail, a stem fixed with respect to the shoeand extending upwardly through i the guides of the said device, atransverse, vertically-movable lever fulcrumed on the truck and having acomparatively short outer arm engaging and arranged to move the stem ofthe shoe, and a coiled spring connecting the said device and the outerarm of the lever.

2. In a rail-brake for cars, the combination of acar-truck, a devicefixed on'the car-truck and having lower and upper vertically-disposedguides and a space between said guides, and also having a bifurcation hin the lower guide, a shoe arranged to engage the tread of a track-rail,a stem fixed with respect to the shoe and extending upwardly through theguides of the said device and having a comparatively wide portiondisposed in the bifurcation of the lower guide, and also having atransverselydisposed slot arranged in the space of the device betweenthe guides thereof, a transverse, vertically-movable lever fulcrumed onthe truck and having a comparatively short outer arm arranged in theslot of the stem, and a coiled spring arranged alongside of the saiddevice and connected at its upper end to the device, and at its lowerend to the outer, short arm of the lever.

In testimony whereof I have hereunto set my hand in presence of twosubscribing witnesses.

SAMUEL T. NOBLE.

Witnesses A. R. MoGULLooH, J NO. L. Locum.-

